Calibration Standard Mix 7 Back Catalog number: 53015 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 31784 EPA Method 1657 Analytes Price on request 11136.27-50-T Tris(4-isopropylphenyl) phosphate,50 µg/mL,toluene,1mL, Price on request DD-12478-S 1,2,4,7,8-Pentachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request